Display unit

ABSTRACT

The present invention relates to a display device which comprises a display device main body provided with a display section, and a cover body which covers the display section of the display device main body.  
     The display device according to the present invention comprises: a cabinet  50  which has a liquid crystal display  51;  a connection section  58  which is rotatably provided relative to the cabinet  50  about a first rotating shaft  62  and  62   b  parallel to the liquid crystal display  51;  a cover body  52  which is rotatably provided relative to the connection section  58  about a second rotating shaft  63  and  63   b  parallel to the first rotating shaft  62  and  62   b,  and opens and shuts the liquid crystal display  51;  and spring pins  62  and  63  which are provided in at least one of the first rotating shaft  62  and  62   b  and the second rotating shaft  63  and  63   b,  and generate frictional forces at rotating of the connection section  58  and/or the cover body  52.    
     According to the display device of the present invention, the cover body  52  may be held at a predetermined angle to the liquid crystal display  51  of the cabinet  50,  the predetermined angle may be continuously changed by giving friction to the cover body  52,  and the cover body  52  may be fixed at an arbitrary position.  
     Accordingly, the cover body  52  may be used for protecting the liquid crystal display  51  and, at the same, as a wall to prevent others from peeping at the display. Furthermore, the cover body may be also used as a stand for the display.

TECHNICAL FIELD

[0001] The present invention relates to a display device which comprisesa display device main body provided with a display section, and a coverbody covering the display section of the display device main body.

BACKGROUND ART

[0002] In a conventional display device, such as PDA (Personal DigitalAssistants), a small word-processor, a small computer, a smallelectronic dictionary, a portable television receiver, and an electronicclock, a cover body (cover) for covering the display section has beenrotatably fitted relative to the display device main body.

[0003] However, there has been no proposal that the cover body in such adisplay device may be held at a desired angle to the display section ofthe display device main body when the cover body is opened.

DISCLOSURE OF THE INVENTION

[0004] Considering the above circumstances, the present invention hasproposed a display device which comprises a display device main body,and a cover body covering the display section of the display device mainbody, wherein the cover body is rotatably fitted relative to the displaydevice main body, and which may hold the cover body at a desired angleto the display section of the display device main body.

[0005] In order to solve the above described problems and the like, andto achieve the above object, a display device according to the presentapplication is characterized by comprising: a display device main bodywhich has a display section; a connection section which is rotatablyprovided, relative to the display device main body, about a firstrotating shaft parallel to the display section; a cover body which isrotatably provided in the connection section about a second rotatingshaft parallel to the first rotating shaft, and opens and closes thedisplay section; and resisting means which is provided on at least oneof the first rotating shaft and the second rotating shaft of theconnection section, and generates a frictional force at a time when theconnection section and/or the cover body rotates.

[0006] By the above described configuration, the display deviceaccording to the present application may hold the cover body at apredetermined angle to the display section of the display device mainbody, and may fix the cover body at an arbitrary position by givingfriction to the cover body. At the same time, the cover body may be usedfor protection of the display section and also as a wall to preventothers from peeping at the display section. Furthermore, the cover bodymay be also used as a stand for the display device main body.

BRIEF DESCRIPTION OF DRAWINGS

[0007]FIG. 1 is a perspective view showing a configuration of anelectronic device which is provided with a control device with a displaydevice according to an embodiment of the present invention.

[0008]FIG. 2 is an outside perspective view of a DVD player showing anembodiment of an electronic device which is provided with a controldevice comprising the display device according to the present invention.

[0009]FIG. 3 is a plan view of the DVD player shown in FIG. 2.

[0010]FIG. 4 is a bottom view of a battery chassis body cut in half ofthe DVD player shown in FIG. 2.

[0011]FIG. 5 is a plan view of a player main body of the DVD playershown in FIG. 2.

[0012]FIG. 6 is a front view of the battery chassis body cut in half ofthe DVD player shown in FIG. 2.

[0013]FIG. 7 is a back view of the player main body of the DVD playershown in FIG. 2;

[0014]FIG. 8 is a side view of the DVD player shown in FIG. 2;

[0015]FIG. 9 is a side view of the player main body of the DVD playershown in FIG. 2;

[0016]FIG. 10 is a perspective view of an open/close cover of the playermain body of the DVD player shown in FIG. 2 while the above cover isopened;

[0017]FIG. 11 is a perspective view of an essential part of a bucklepart of the player main body shown in FIG. 10 while the buckle part isenlarged and seen from the right side.

[0018]FIG. 12 is a perspective view of an essential part of the bucklepart of the player main body shown in FIG. 10 while the buckle part isenlarged and seen from the upper side.

[0019]FIG. 13 is an explanatory view of a holding stand part-cut off andillustrates the state of charging the DVD player shown in FIG. 2 forelectric power.

[0020]FIG. 14A is a front view of the display device according to thefirst embodiment of the present invention.

[0021]FIG. 14B is a side view of the display device according to thefirst embodiment of the present invention.

[0022]FIG. 14C is an enlarged perspective view of a spring pin in thedisplay device according to the first embodiment of the presentinvention.

[0023]FIG. 15 is a plan view of a cover body which is opened in thedisplay device shown in FIG. 14.

[0024]FIG. 16 is an explanatory diagram showing an essential part of across-sectioned central part of a display device main body in thedisplay device shown in FIG. 15.

[0025]FIG. 17 explains a used state of the first embodiment of thedisplay device according to the present invention, wherein FIG. 17A is aside view of the cover body which is opened at an angle of a little bitsmaller than 90 degrees, and FIG. 17B is a side view of the cover bodywhich is opened at an angle of approximately 90 degrees.

[0026]FIG. 18 explains a used state of the first embodiment of thedisplay device according to the present invention, wherein FIG. 18A is aside view of the cover body which is opened at an angle of approximately270 degrees as a stand, and FIG. 18B is a side view of the cover bodywhich is opened at an angle of approximately 360 degrees.

[0027]FIG. 19 shows a second embodiment of a display device according tothe presents invention, wherein FIG. 19A is a side view of the coverbody which is closed; FIG. 19B is a side view of the cover body which isopened at an angle of approximately 90 degrees; and FIG. 19C is a sideview of the cover body which is opened at an angle of approximately 270degrees.

[0028]FIG. 20 shows a third embodiment according to the presentinvention, and is a side view of the cover body which is closed.

[0029]FIG. 21 shows a forth embodiment according to the presentinvention, wherein FIG. 21A is a side view of the cover body which isclosed and FIG. 21B is an explanatory view of a clicking plate which isenlarged and exploded.

[0030]FIG. 22 shows a fifth embodiment according to the presentinvention, wherein FIG. 22A is a side view of the cover body which isclosed; FIG. 22B is a side view of the cover body which is opened at anangle of approximately 180 degrees; and FIG. 22C is a side view of thecover body which is opened at an angle of 360 degrees.

[0031]FIG. 23 shows a sixth embodiment according to the presentinvention, wherein FIG. 23A is a front view of the cover body which isclosed and FIG. 23B is a side view of the cover body which is closed.

BEST MODE FOR CARRYING OUT THE INVENTION

[0032] Hereinafter, embodiments of the present invention will bedescribed, referring to attached drawings. FIGS. 1 to 23 show anembodiment of an electronic device provided with a control device whichcomprises display devices according to embodiments of the presentinvention, and the electronic device is configured as a portable DVDplayer.

[0033] As shown in FIG. 1, the DVD player 1 is configured to comprise: aplayer main body 6 for DVD (Digital Versatile Disc) which represents oneconcrete example of an information recording and reproducing device; acontrol device 2 for remote control of operations of the player mainbody 6; and a battery chassis body 3 which supplies electric power tothe control device 2 and the player main body 6. And, the player mainbody 6 and the control device 2 are connected through a first connectioncable 4 which represents one concrete example of signal transmissionmeans. Moreover, the player main body 6 and the other electronic devices(for example, a television set) are connected through a secondconnection cable 5 of similar signal transmission means.

[0034] As shown in FIGS. 1 to FIGS. 10, the player main body 6 is of ashell shape in which a terrace-type protruding section 6 a is providedin one part of the circumference of a disk body. A disk chassis section7 which comprises a circular recess is provided on the upper surface ofthe player main body 6. The disk chassis section 7 is configured to beopened and closed by an open/close cover 8 of a similar shell shape.Moreover, a buckle 9 which locks the open/close cover 8 in a closedstate is provided on the player main body 6.

[0035] As shown in FIG. 10, a disk drive device 10 which is elasticallysupported by the player main body 6 is disposed in the disk chassissection 7 of the player main body 6. The disk drive device 10 isconfigured to comprise a turntable 11 disposed in the center of the diskchassis section 7, and an optical pickup device 12 which executes one orboth of reproduction (read) and recording (write) of an informationsignal from and on an information storage surface of an optical disk,which is attached on the turntable 11, such as DVD and CD (compact disk)which represents one concrete example of a disk-type storage medium.

[0036] Though not shown in the figure, the turntable 11 is fitted on arotation section of a spindle motor which is fixed to a chassis at thefixed section. Furthermore, the optical pickup device 12 is slidablysupported by a pair of guide shafts which are fixed to the chassis. Thepair of guide shafts are configured to be disposed parallel to eachother with a predetermined distance in-between. Front end sectionsthereof are disposed so as to sandwich the spindle motor, and rear endsthereof are extended backward.

[0037] The upper surface of the disk drive device 10 is covered with acover plate 13. A circular central hole 14 a, and an opening section 14b which has a long hole shape, and continuously extending backward fromthe circular central hole 14 a are provided on the cover plate 13. Then,the turntable 11 is protruded upward from the central hole 14 a, and anoptical head of the optical pickup device 12 is inserted to the openingsection 14 b. An object lens 15 of the optical head is configured toface the information storage surface of the optical disk attached on theturntable 11.

[0038] The turntable 11 has an engagement section 11 a which engageswith the center hole of the optical disk, and a mounting section 11 bwhich is formed integrally with the engagement section 11 a and, at thesame time, on which a periphery section of the central hole of theoptical disk is mounted. A plurality of engagement pawls arecircumferentially provided at approximately equal intervals in theengagement section 11 a of the turntable 11. Each engagement pawl isconfigured to be movable in the radial direction of the mounting section11 b, and to be urged outward in the radial direction by springs at anytime.

[0039] The engagement section 11 a may engage with the center hole ofthe optical disk by moving the engagement pawls backward against thespring forces of the springs. In such an engagement state, each of theengagement pawls fixedly engages with the periphery section of thecentral hole by the spring forces of the springs. As a result, theoptical disk is chucked by the turntable 11 and is driven to rotateintegrally with the turntable 11.

[0040] The open/close cover 8 which is overlapped on the upper surfaceof the player main body 6 comprises a protruding section 8 acorresponding to the protruding section 6 a of the player main body 6,and a side section 8 b protruding continuously from the peripheral edgeof the protruding section 8 a toward the lower surface side. Inaddition, a pair of L-shaped arm pieces 17 and 17, which are protrudingtoward the lower surface side, are provided on the protruding section 8a of the open/close cover 8. Each arm pieces 17 are inserted into theinside of the player main body 6 while passing through the protrudingsection 8 a, and the tip section is rotatably supported by a supportingshaft 18.

[0041] The supporting shaft 18 is supported at its both ends by the sideof the protruding section 6 a of the player main body 6, and theopen/close cover 8 may perform looking-upward and looking-downwardoperation with the supporting shaft 18 as the center of rotation.

[0042] Accordingly, the disk chassis section 7 is completely closed bythe open/close cover 8 by pressing down the open/close cover 8, and byoverlapping the cover 8 on the player main body 6. At this juncture, acover open/close switch is operated by a cover open/close detectionpiece 19 provided in the open/close cover 8 to detect whether theopen/close cover 8 is closed. The cover open/close detection piece 19 isdisposed on the free end side (the other side of the arm piece 17) ofthe side section 8 b of the open/close cover 8. A detection hole 20 forthe open/close cover as corresponds to the cover open/close detectionpiece 19 is provided in the disk chassis section 7 of the player mainbody 6. The cover open/close switch is disposed inside the detectionhole 20.

[0043] Though not shown, a cover-posture maintaining mechanism which maymaintain the posture of the open/close cover 8 at an arbitraryopen/close angle is provided in the player main body 6, relating to oneof the arm pieces 17 of the open/close cover 8. The cover-posturemaintaining mechanism may smoothly perform open/close operation of theopen/close cover 8 with a predetermined force by giving a predeterminedfrictional force in accordance with rotating operation of the open/closecover 8 and, at the same time, the open/close angle may be maintained atan arbitrary open/close position. As such a cover-posture maintainingmechanism, for example, a friction sliding mechanism, a damper device orthe like, which may generate a frictional force of a suitable magnitudebetween the arm piece 17 and a member of the player body 6, may beadapted.

[0044] Moreover, the buckle 9 is rotatably fitted on a front surfacesection on the opposite side of the protruding section 6 a in the playermain body 6. As shown in FIGS. 11 and FIG. 12 the buckle 9 has a shapethat conforms to the shape of the side surface of the player main body 6such that the buckle 9 may be attached on the side section of the playermain body 6, and is hinge-joined to the player main body 6 on one sideof the width direction perpendicular to the circumferential direction.

[0045] That is, shaft receivers 9 a are provided on one side of thewidth direction of the buckle 9, and are inserted between a pair ofshaft-receiving convex sections 6 b and 6 b of the player main body 6. Ahinge section 21 is formed by passing a rotating shaft 21 a through thepair of shaft-receiving convex sections 6 b and 6 b and the shaftreceiving sections 9 a. A notch section 22 to which the free end side ofthe buckle 9 is detachably attached is provided on the upper surface,which is on the opposite side of the hinge section 21, of the playermain body 6.

[0046] An opening window 24 is provided approximately in the center partof the buckle 9. Into the opening window 24 is inserted a beam receivingsection 23 of the remote control device which will be described laterand is provided approximately in the center part of the notch section 22of the player main body 6. The beam receiving section 23 is configuredto have beam receiving surfaces on two surfaces of the front and theupper surface of the player main body 6, and the beam receiving surfaceon the front is exposed through the opening window 24.

[0047] Furthermore, an engagement body 9 b which engages with and holdsthe open/close cover 8 is provided in the buckle 9 to be capable ofadvancing and retreating by a advance/retreat movement mechanism. Theadvance/retreat movement mechanism comprises: a spring 150 which urgesthe engagement body 9 b outward at any time; a sliding member 151 whichadvances and retreats the engagement body 9 b against the spring forceof the spring 150; a spring member 152 which urges the sliding member151 in the retreating direction; a holder 153 which holds the abovemembers; a plurality of fitting screws 154 which fits the holder 153 tothe inside of the buckle 9, and the like. And, cam sections 155 a and155 b which are protruding in directions opposite to each other areprovided in the engagement body 9 b and the sliding member 151.

[0048] An engagement receiving section 26 with which the engagement body9 b engages in a detachable manner is provided, corresponding to theengagement body 9 b of the buckle 9, approximately in the center part onthe free end side of the of the open/close cover 8. The engagementreceiving section 26 of the open/close cover 8 is inserted approximatelyinto the center part of the notch section 22 when the disk chassissection 7 is in a state of being closed. The tip of the engagementreceiving section 26 and that of the engagement body 9 b of the buckle 9contact each other at a time of the open/close cover 8 being overlappedon the player main body 6. Then, the engagement body 9 b is soconfigured as to retreat against the spring force of the spring 150 asthe buckle 9 is being pressed down, and to climb over the tip section ofthe engagement receiving section 26. Thereafter, by engaging theengagement body 9 b with the engagement receiving section 26 theopen/close cover 8 is firmly tightened and locked by the buckle 9.

[0049] Thus, by sliding the sliding member 151 to the right side in FIG.12 against the spring force of the spring member 152, the cam section155 b provided in the sliding member 151 makes the cam section 155 aprovided in the engagement body 9 b retreat. Thereby, the engagementbody 9 b retreats from the surface of the holder 153 to the insidethereof, and the engagement of the engagement body 9 b with theengagement receiving section 26 of the open/close cover 8 is released.

[0050] Subsequently, when the sliding member 151 is let go, the springforce of the spring member 152 slides the sliding member 151 to the leftside. Thereby, the engagement body 9 b is reverted to the original stateby the spring force of the spring 150, and is protruded, as the camsection 155 b is separated from the cam section 155 a.

[0051] The state in which the open/close cover 8 is locked by the buckle9 can be simply released by the following two modes. A firstlock-releasing operation is to slide the sliding member 151 in thecircumferential direction. At this time, the engagement body 9 bretreats against the spring force of the spring 150 by sliding thesliding member 151 in the lateral direction. Thereby, the engagement ofthe engagement receiving section 26 by the engagement body 9 b isreleased.

[0052] As a result, the buckle 9 can be pulled up, and the engagementbody 9 b is separated wide apart from the engagement receiving section26 by the pull-up operation so that the pull-up operation of theopen/close cover 8 becomes possible. In such a case, the pull-upoperation of the buckle 9 may be easily and smoothly performed with asmall force.

[0053] Moreover, a second lock-releasing operation of a locked state ofthe open/close cover 8 is to directly pull the buckle 9 up without thesliding operation of the sliding member 151. In such a case, as thespring force of the spring 150, that of the spring member 152, and themovement of the sliding member 151 become a resisting force when thebuckle 9 is pulled up, a pull-up force larger than that of the firstlock-releasing operation is required. However, the pull-up operation ofthe buckle 9 may be executed in a comparatively simple manner byadequately setting the values for the spring forces of the spring 150and the spring member 152.

[0054] In order to detect the open/close operation of the buckle 9, anopen/close protrusion 156 is provided on the inner side of the buckle 9.A buckle detection hole 27 is provided, corresponding to the open/closeprotrusion 156, on the front surface of the notch section 22 of theplayer main body 6. A buckle open/close switch which is a seconddetector for detecting the open/close operation of the buckle 9 isdisposed inside the detection hole 27. At this time, 27 by completelyputting the buckle 9 in place and by locking the open/close cover 8 theopen/close protrusion 156 is inserted into the detection hole. As aresult, the buckle open/close switch is operated by the open/closeprotrusion 156, and the locked state of the buckle 9 is detected.

[0055] In addition, as shown in FIG. 1 and the like, a first socketsection 28, a second socket 29 and an earphone jack 30; display lampssuch as a charge lamp 31 a, and a power supply lamp 31 b; and operationmeans 32 such as a reproducing button, and a volume switch are providedon the side section of the player main body 6. The first and secondsocket sections 28, 29 and the earphone jack 30 are disposed on the leftside section of the player main body 6, and the display lamps and theoperation means 32 are disposed on the right side section of the playermain body 6.

[0056] The battery chassis body 3 is detachably attached as a powersupply device in the player main body 6 which has such a configuration.The battery chassis body 3 comprises a first battery case 34 and asecond battery case 35, and the both cases 34 and 35 are rotatablyconnected to each other The battery cases 34 and 35 are configured tocomprise respectively flat rectangular containers, wherein the planeshapes have been made approximately similar shapes, and the lowerbattery case 35 as the second battery case is longer than the upperbattery case 34 as the first battery case in the longitudinal direction.And, the widths of the both battery cases 34 and 35 are a little bitwider than those of the protruding section 6 a of the player main body 6and the protruding section 8 a of the open/close cover 8.

[0057] As shown in FIG. 2, connection sections 34 a, 35 a which areoutwardly protruding to both sides in the width direction are providedat one end, in the longitudinal direction, of each battery cases 34 and35. The upper and lower battery cases 34 and 35 are integrallyconfigured to be capable of rotating by connecting the connectionsections 34 a, 35 a to each other. Connection means of the batterychassis body 3 makes it possible for the upper and lower battery cases34 and 35 to choose either a closed state in which the above cases areapproximately parallel to each other with a predetermined gap in thevertical direction or an open state in which the upper battery case 34are inclined to the lower battery case 35 by an arbitrary angle (forexample, 45 degrees and 60 degrees).

[0058] The predetermined gap between the upper and lower battery cases34 and 35 amounts to the thickness of the player main body 6, and theplayer main body 6 is inserted between the upper and lower battery cases34 and 35. In order to position the player main body 6 which has beeninserted as described above, an engagement concave/convex section 36 isprovided at the tip section of the upper battery case 34. A hook section37 with a L-shape cross section is provided in the open/close cover 8,corresponding to the engagement concave/convex section 36. The hooksection 37 is set up in the neighborhood of the engagement receivingsection 26 in the open/close cover 8. By engagement of the engagementconcave/convex section 36 with the hook section 37, positioning of theupper battery case 34 in the open/close cover 8, and joining of theopen/close cover 8 and the upper battery case 34 together may besimultaneously executed.

[0059] Moreover, a fixing screw 38 is rotatably fitted in the lowerbattery case 38. The fixing screw 38 is disposed at a positioncorresponding to the protruding section 6 a of the player main body 6 inthe lower battery case 35. A tapped hole is provided on the back of theplayer main body 6, corresponding to the fixing screw 38, and the lowerbattery case 35 is fixed to the player main body 6 by screwing togetherthe fixing screw 38 and the tapped hole.

[0060] When the lower battery case 35 is in a state of being fixed, theupper battery case 34 is integrally rotated with the open/close cover 8.That is, the open/close cover 8 can freely open and close the diskchassis section 7 while the upper battery case 34 is in a state of beingin place. An appropriate number of rechargeable second batteries 40 areheld in the upper battery case 34.

[0061] Moreover, an appropriate number of rechargeable second batteries40 and a safety circuit 41 are held in the lower battery case 35. Thesafety circuit 41 is connected to a connector 42. The connector 42 isintegrally provided on the rear surface section of the lower batterycase 35. A plug 43 which is connected to the connector 42 is integrallyprovided on the rear surface section of the player main body 6.Accordingly, the connector 42 and the plug 43 are automaticallyconnected by putting in place the battery chassis body 3 in the playermain body 6, and electric power is automatically supplied from thebattery chassis body 3 to the player main body 6.

[0062] As materials for the player main body 6, the open/close cover 8,the buckle 9 and the upper and lower battery cases 34 and 35 configuredas described above, for example, plastic such as ABS (acrylonitrilebutadiene styrene resin), a POM (polyacetal resin) and other engineeringplastic may be adapted. Moreover, aluminum alloys and other metals maybe used for the materials.

[0063] Furthermore, the control device 2 has a configuration shown inFIG. 1, FIGS. 14A to 14C, and the like. That is, the control device 2 isconfigured to comprise: a cabinet 50 as a display device main body; aliquid crystal display 51 which shows one concrete example of a displaysection; a cover body 52 which opens and closes the display surface ofthe liquid crystal display 51; an operation section 53 which includesvarious types of switching means, adjusting means, and the like.

[0064] The cabinet 50 comprises a hollow chassis having an approximatelyquadrilateral shape, and an opening window 54 is a little bit offset toone side in the longitudinal direction which is a lateral direction.Further, on the other side of the longitudinal direction of the cabinet50 a, plurality of openings (three holes in the present embodiment) 55a, 55 b and 55 c are provided at predetermined intervals in the widthdirection. And, the liquid crystal display 51 is fitted into the openingwindow 54, and various kinds of operation buttons in the operationsection 53 are inserted into a plurality of openings 55 a to 55 c,respectively.

[0065] An operation button 56 a as a basic operation switch by whichbasic operation such as reproduction, fast-forwarding, and rewinding isexecuted is attached in the first opening 55 a which is located at theupper part. With regard to the operation button 56 a, on/off operationof reproduction may be realized, for example, by pressing the centerpart of the button 56 a. And, fast-forwarding or rewinding operation maybe selectively executed by pressing one side of the both sides.

[0066] Moreover, a selection button 56 b as a mode selection switch bywhich mode selection and decision may be executed is attached in thesecond opening 55 b which is located at the center. With regard to theselection button 56 b, one of various kinds of modes may be selected,for example, by pressing one part of four parts which are located at theupper, lower, right, and left parts of the button 56 b, and the selectedmode may be decided by pressing the center part of the button 56 b afterthe selection. In addition, a power supply button 56 c as a power supplyswitch is attached in the third opening 55 c which is located at thelower part. On/off of the power supply is executed by sliding the powersupply button 56 c in the lateral direction.

[0067] Furthermore, a long hole 55 d which is extended in the widthdirection is provided on the side surface of the cabinet 50 at the sideof the openings 55 a to 55 c. Two adjusting buttons 56 d and 56 e asvolume switches for volume adjusting is attached in the long hole 55 d.One adjusting button 56 d turns up the volume, and the other adjustingbutton 56 e turns down the volume.

[0068] As shown in FIG. 1 and FIG. 15, and the like, a connectionsection 58 of the cover body 52 is provided on the upper surface of thecabinet 50. The connection section 58 comprises: protruding rails 59 aand 59 b which are provided on the upper surface of the cabinet 50;protruding rails 60 a, 60 b which are provided on the upper surface ofthe cover body 52; a connection block 61 which is located between theprotruding rails 59 a and 59 b, and between the protruding rails 60 aand 60 b, two spring pins 62 and 63, which represent one concreteexample of resisting means; and the like.

[0069] Two sets of the protruding rails 59 a and 60 a, and 59 b and 60 bhave similar shapes and configurations, and the strips of each set aredisposed on the same shaft center lines, with predetermined spacesin-between, respectively. One end of each spring pin 62 and 63 in theaxial direction is press-fit into one internal end face of eachprotruding rail 59 a, 60 a, respectively.

[0070] As shown in FIG. 14C on an enlarged scale, the spring pins 62 and63 are formed by providing slits 62 a and 63 a in metal cylindricaltubes. Each slit 62 a and 63 a of the spring pins 62 and 63 iscontinuously provided from one end to the other end of the cylindricaltubes, so that elasticity may wholly be imparted by making it possiblefor the diameter thereof to be elastically reduced by the amounts of thewidths of the slits 62 a and 63 a.

[0071] Here, the shapes of the slits 62 a and 63 a of the spring pins 62and 63 are not limited to a wavelike shape shown in a figure accordingto the present embodiment, and may be formed to other shapes such as astraight line one, a curved line one, a saw-toothed one, or a horny one.As a material of the spring pins 62 and 63, metals such as spring steelor stainless steel may be preferable, but engineering plastic may alsobe adapted.

[0072] Convex shaft sections 62 b, 63 b which are respectivelyprotruding toward the spring pins 62 and 63 are each provided on one endface inside each of protruding rail 59 b, 60 b. The diameters of therespective convex shaft section 62 b, 63 b are set to approximatelysimilar amounts of the outer diameters of the spring pins 62 and 63,respectively. The two convex shaft sections 62 b, 63 b, and theprotruding sections of the spring pins 62 and 63 are covered by theconnection block 61.

[0073] As shown in FIG. 16, the connection block 61 is formed by acombination of a first block 61 a and a second block 61 b which areformed like gutters, and a fixing screw 64 which tightens and fixes boththe blocks 61 a, 61 b. A through hole 65 is provided approximately atthe center part of the first block 61 a, and a boss section 66 isdisposed approximately at the center part of the inner surface of thesecond block 61 b. Moreover, a tapped hole 66 a into which a screwsection of the fixing screw 64 is screwed is provided at the bosssection 66.

[0074] The second block 61 b is applied against one side of theprotruding sections of the two spring pins 62 and 63 and the two convexshaft sections 62 b, 63 b, and the first block 61 a covers the otherside of them. Thereafter, the fixing screw 64 is passed through both theblocks 61 a, 61 b, and the screw section thereof is screwed into thetapped hole 66 a of the boss section 66 to thereby tighten the bothblocks.

[0075] Thereby, the cabinet 50 and the cover body 52 are rotatablyconnected through the connection block 61 by the connection section 58which has hinged structures at two locations. In such a case, theamounts of reduction in the diameters of the spring pins 62 and 63 maybe adjusted by adjusting the tightening force of the fixing screw 64. Asa result, frictional forces which are generated between the connectionblock 61 and the spring pins 62 and 63 may be changed upwardly ordownwardly by changing the diameters of the spring pins 62 and 63.Thereby, operation forces at a time of the cover body 52 in operationmay be adequately adjusted to appropriate values by changing thefrictional forces when the cover body 52 is opened or closed.

[0076] Moreover, the cover body 52 comprises a plate body the size ofwhich may cover approximately all over the display surface including theliquid crystal display 51 of the cabinet 50. The above-describedprotruding rails 60 a, 60 b are integrally provided at the upper edge ofthe cover body 52. The cover body 52 and the cabinet 50 are rotatablyconnected by the connection section 58 which has the hinged structuresat two locations.

[0077] Accordingly, the cover body 52 may be rotated by a maximum angleof approximately 360 degrees to the liquid crystal display 51 which is adisplay surface. Then, by making the cover body 52 move to the backsideby rotating by an angle of approximately 360 degrees the cover body 52itself may be used, for example, for a function such as a stand of thecabinet 50.

[0078] A first rotating shaft which is parallel to the display sectionis formed by the above first spring pin 62 and convex shaft section 62 bof the cabinet 50. The cabinet 50 and the connection block 61 isconnected such that they can be rotated around the first rotating shaft.And, a second rotating shaft is formed by the second spring pin 63 andthe convex shaft section 63 b of the cover body 52. The second rotatingshaft is parallel to the first rotating shaft, and the cover body 52 andthe connection block 61 is connected such that they can be rotatedaround the second rotating shaft. The cover body 52 may be fixed at anarbitrary position on each rotating shaft by a frictional force which isgenerated between the connection block 61 and the spring pin 62 or 63.

[0079] Engineering plastic such as ABS, and POM may be applied formaterials of the cabinet 50, the cover body 52, and the connection block61 of the above-described connection block 61. But, the materials arenot limited to the above plastic, and aluminum alloys or other metalsmay be used as the materials.

[0080] As shown in FIG. 1, one end of a first connection cable 4 whichconnects the control device 2 to the player main body 6 is fixedlyconnected to the lower part at the side of the operation section 53 inthe cabinet 50. A first plug 70 for connection to the player main body 6is integrally fixed to the other end of the connection cable 4.

[0081] The first plug 70 comprises a plug main body 71 which includes ahollow body with a quadrilateral section, a cap body 72 of asemicircular shape which is joined to the backside of the plug main body71, a terminal cover 73 which is protruding from the tip side of theplug main body 71, and the like. The cap body 72 is formed to becomethinner in the width at the tip side. Protruding guide rails 74 whichregulate the inserting direction when the cap body 72 are inserted intothe first socket section 28 of the player main body 6 are provided attwo positions on one surface, which has a thinner width, of the cap body72. A pair of guide grooves 28 a which are slidably fitted to theprotruding guide rails 74 are provided, corresponding to the above guiderails 74, in the first socket section 28.

[0082] In addition, an erroneous insertion prevention convex section 74a that protrudes forward in an arc-shape is provided at the tip sectionof one surface on the wide side of the plug main body 71. At the tipsection on the wide side of the plug main body 71 there is provided anerroneous insertion prevention concave section having an arc-shape notchthat opens at the tip edge to thereby be symmetric with this 74 a.

[0083] As described above, by providing the concave section and convexsection for preventing the erroneous insertion into the tip section onthe insertion side of the plug main body 71 the possibility that a lotof terminals which are disposed in the terminal cover 73 might bedamaged due to an erroneous insertion of the first plug 70 may beeliminated. Moreover, by providing a pair of protruding guide rails 74and 74 in the plug main body 71, the possibility that terminals in theterminal cover 73 might be damaged due to external-forces with which totwistingly pull out the first plug 70 in the extracting direction iseliminated.

[0084] The terminal cover 73 of the first plug 70 comprises a slenderframe body with a quadrilateral section. A lot of terminals are disposedin a row (arrangement in a plurality of lines is acceptable) along thelongitudinal direction in the above cover. And, one end of a pipe-shapesheath member 75, which is diagonally and sideways extending, isconnected to the rear part of the cap body 72. A lot of wire rods arepassed through the sheath member 75.

[0085] As described above, by assuming that the pulling-out direction ofthe wire rods is set to the diagonally sideways direction, the leadingdirection of the connection cable 4 may be regulated so that the aboveleading direction be approximately in the same direction with thelongitudinal direction of the battery chassis body 3. As a result, loadswhich are applied by the connection cable 4 to the connection section ofthe first plug 70 may be reduced, and occurrences of troubles such as ashort circuit and breaking of wire may be restrained. Here, the plugmain body 71 of the first plug 70 is inserted into the root parts of theprotruding guide rails 74.

[0086] And, a second plug 77 which is provided at one end of the secondconnection cable 5 in order to connect the player main body to otherelectronic devices is detachably attached in the second socket 29. Thesecond plug 77 has a terminal cover 78 which is protruding from the tipsection at the plug inserting side. The terminal cover 78 comprises aslender frame body with a quadrilateral section. A lot of terminals aredisposed in a row (arrangement in a plurality of lines is acceptable)along the longitudinal direction in the above cover 78.

[0087] One end of a wire rod 79 is connected to the back surface of thesecond plug 77, and the other end of the wire rod 79 is connected to aconnector 80. The connector 80 connects the player main body 6 to otherelectronic devices (for example, a television set). The secondconnection cable 5 is comprised of the second plug 77, the wire rod 79and the connector 80.

[0088] The connector 80 comprises a hollow chassis of a flat shape, andthe wire rod 79 is connected to the side surface of one end. A pluralityof terminals 81 are disposed in a line on the other end surface of theconnector 80. For example, a video terminal, an S1 video terminal andright and left audio terminals, may be listed as the above terminals 81.

[0089] An electronic device with the above configuration may be used,for example, in the following way. The battery chassis body 3 isintegrally attached to the player main body 6 in advance. That is, theprotruding section 6 a side of the player main body 6 is insertedbetween the upper battery case 34 and the lower battery case 35 of thebattery chassis body 3. Then, the engagement concave/convex section 36is engaged with the hook section 37 of the open/close cover 8.

[0090] At this time, by inserting the player main body 6 up to apredetermined position, the plug 43 provided in the player main body 6is engaged with the connector 42 provided in the lower battery case 35,as shown in FIG. 4. Accordingly, the player main body 6 and the batterychassis body 3 are electrically connected to each other. Subsequently,the fixing screw 38 of the lower battery case 35 is screwed into atapped hole of the player main body 6, and the above case 35 and themain body 6 are tightened. Thereby, the hook-up of the battery chassisbody 3 to the player main body 6 is completed.

[0091] Then, the first plug 70 of the first connection cable 4 isinserted into the first socket section 28 of the player main body 6, andthe control device 2 is connected to the player main body 6 through thefirst connection cable 4. Thereby, the player main body 6, the batterychassis body 3, and the control device 2 are electrically connected toeach other, and the operation of the DVD player 1 becomes possible.

[0092] Operation to attach an optical disk in the player main body 6 ofthe DVD player 1 may be realized, for example, in the following manner.In the first place, the buckle 9 is pulled up, and the locked state ofthe open/close cover 8 with the buckle 9 is released. That is, hook afinger on and pull up the buckle 9 against the spring force of thespring member 152. Thereby, the buckle 9 is directly pulled up withoutthe sliding operation of the sliding member 151 to realize the unlockingin a simple manner.

[0093] In this case, a comparatively large force is required to beapplied on the buckle 9, as the spring force of the spring member 152becomes resistant to the pull-up operation of the buckle 9. In aseparate way from this, in order to release the locked state of thebuckle 9 with a small force, the slide member 151 is slid to retreat theengagement body 9 b to thereby release an engagement by the engagementbody 9 b with the engagement receiving section 26. Thereby, the lockedstate of the buckle 9 is released. Accordingly, the buckle 9 may besimply pulled up with a small force by rotating the buckle 9 about thehinge section 21.

[0094] Thus, when the buckle 9 is pulled up, the open/close protrusion156 provided on the inner surface of the buckle 9 is extracted from thedetection hole 27 which is provided on the front surface of the playermain body 6. Thereby, a detection switch which detects the locked stateof the buckle 9 becomes off, and a detection signal is sent to thecontrol device 2.

[0095] Then, the engagement receiving section 26 or the like which havebeen exposed by pulling up the buckle 9 is held, for example, with afingertip, and the front side of the open/close cover 8 is drawn up toan arbitrary height. Thereby, the disk chassis section 7 which isprovided on the upper surface is opened, and the disk drive device 10 isexposed.

[0096] At this time, the cover open/close detection piece 19 of theopen/close cover 8 is extracted from the detection hole 20 for the coverof the player main body 6. Thereby, a detection switch which detectsopening and closing of the open/close cover 8 becomes off, and adetection signal is sent to the control device 2. When an open signal ofthe open/close cover 8, and the above-described release signal of thebuckle 9 are not supplied to the control device 2, that is, when theopen/close cover 8 is open, or, when the buckle 9 is open, the diskdrive device 10 is never driven.

[0097] Here, the upper battery case 34 of the battery chassis body 3 isintegrally moved together with the open/close cover 8, and are jumped uptogether with the open/close cover 8. Thereby, the disk chassis section7 is opened, and the turntable 11 of the disk drive device 10 isexposed, as shown in FIG. 10. Thereafter, a desired optical disk isattached on the turntable 11, and chucking of the optical disk isexecuted.

[0098] Then, the open/close cover 8 is pushed down together with theupper battery case 34, and the disk chassis section 7 is closed with theopen/close cover 8. At this time, by completely closing the open/closecover 8 the cover open/close detection piece 19 is inserted into thecover detection hole 20. Accordingly, the detection switch which detectsthe closed state of the open/close cover 8 becomes on, and the detectionsignal is supplied to the control device 2. the above detection signalalone will not start the driving of the disk drive device 10.

[0099] Then, the buckle 9 is pushed up, and the engagement body 9 b isengaged with the engagement receiving section 26. Thereby, theopen/close cover 8 is firmly locked to the player main body 6 throughthe buckle 9. At this time, the open/close protrusion 156 is insertedinto the buckle detection hole 27 by completely closing the buckle 9. Asa result, the detection switch which detects the locked state of thebuckle 9 becomes on, and the detection signal is supplied to the controldevice 2. As the detection signal and the above-described detectionsignal for the open/close cover are supplied to the control device 2,driving the disk drive device 10 can be started.

[0100] The DVD player 1 which has completed preparation for use asdescribed above can be used indoors, and is also preferable usedoutdoors. In such a case, the DVD player 1 is preferably configured, forexample, to be capable of being hung with the use of a not-shown strap,that is, capable of being carried around while hung from a neck or thelike.

[0101] As a result, by operating the control device 2 while holding itwith hand, images of information recorded on an optical disk may bereadily enjoyed outdoors, using the liquid crystal display 51 of thecontrol device 2. Moreover, voices of information recorded on theoptical disk may be enjoyed with earphones connected to the earphonejack 30.

[0102] Then, one embodiment of operation of the control device 2 will bedescribed. FIG. 17A shows a state in which a user holds the controldevice 2 with hands and the cover body 52 is opened at an angle a littlebit less than 90 degrees to the liquid crystal display 51 of the displaysurface of the cabinet 50.

[0103] In this case, it is assumed that a frictional force which isgenerated between the second spring pin 63 of the second rotating shaftand the connection block 61 is smaller than a frictional force which isgenerated between the spring pin 62 of the first rotating shaft and theconnection block 61 (for example, the thickness of the spring pin 62 isset to be larger than that of the thickness of the spring pin 63, andthe elasticity of the spring pin 62 is set to be larger than that of theelasticity of spring pin 63.).

[0104] Thereafter, in a state that the first rotating shaft is fixed,the cover body is rotated about the second rotating shaft in the firstplace. Thereafter, after the amount of rotation of the first rotatingshaft becomes the maximum, the cover body 52 is rotated about the firstrotating shaft in the second place.

[0105] In the first place, hook the finger tip on the free end side ofthe cover body 52 and pull up the cover body 52. Thereby, as thefrictional force caused by the spring pin 62 of the first rotating shaftis larger than that of the spring pin 63 of the second rotating shaft,the cover body 52 is rotated around the spring pin 63 of the secondrotating shaft, and the second convex shaft section 63 b.

[0106] Then, as shown in FIG. 17A, when the cover body 52 is stopped atan arbitrary angle narrower than 90 degrees, the cover body 52 is fixedby the frictional force of the spring pin 63 at an angle at which thebody 52 has been stopped. In such a condition, though an operator maysee contents displayed on the liquid crystal display 51, it is difficultfor others to look in the contents, and it is possible to prevent theothers from peeping at the contents from the surroundings.

[0107]FIG. 17B shows a state in which a user holds the control device 2with hands, and the cover body 52 is opened at an angle of 90 degrees tothe liquid crystal display 51 of the cabinet 50. As the cover body 52 isstopped at an angle of near 90 degrees, the cover body 52 may be used asa sunshade.

[0108] In addition, FIG. 18A shows a state in which the cover body 52 isrotated by an arbitrary angle equal to or larger than 270 degreesrelative to the display surface of the cabinet 50, and the cabinet 50and the cover body 52 each have the free ends thereof placed on a planeP such as a desk. The above state is caused after the connection block61 is rotated from the state shown in FIG. 17B by 180 degrees about thespring pin 62 of the first rotating shaft and the first convex shaftsection 62 b.

[0109] Subsequently, the cover body 52 is rotated by an arbitrary anglesmaller than 90 degrees about the spring pin 63 of the second rotatingshaft and the second convex shaft section 63 b. Thereby, as shown inFIG. 18A, the cover body 52 may be used as a stand for the cabinet 50.In this case, by changing the angle of inclination of the cover body 52relative to the cabinet 50 the display surface of the liquid crystaldisplay 51 can be freely set to a state by a user such that the user mayeasily see the display surface.

[0110]FIG. 18B shows a state in which the cover body 52 is rotated by anangle of 360 degrees to the display surface of the cabinet 50, and isoverlapped on the back surface of the cabinet 50. In this case, it ispossible to dispose the cover body 52 such that the body 52 will notbecome an obstacle when a user sees the display surface while holdingthe control device 2 with hands.

[0111]FIG. 19A shows one example in which a rotating shaft 67 isprovided instead of the second spring pin 63 of the second rotatingshaft, out of two spring pins 62 and 63 which are used in the abovecontrol device 2, and the cover body 52 and the connection block 61 arerotatably connected through the rotating shaft 67. In this case, theprotruding rails of the cabinet 50 and the connection block 61 arerotatably connected with a frictional force caused by the elasticity ofthe spring pin 62 as in the above embodiment. Here, anti-slipping rubber68 a, 68 b is stuck as a anti-slipping member on each free end of thecover body 52 and the cabinet 50.

[0112]FIG. 19B explains the operation of the control device 2 shown inFIG. 19A. It is shown that a user holds the control device 2 with hands,and the cover body 52 is opened at an angle of 90 degrees to the displaysurface of the cabinet 50. Thereby, the display surface may be easilyseen by using the cover body 52 as a sunshade.

[0113] As described above, although the rotating shaft 67 connects thecover body 52 and the connection block 61 rotatably witout accompanyingthe frictional force by moving the rotating shaft 67 in the diagonallybackward direction of the spring pin 62, the cover body 52 may be keptat a position to which the body 52 is rotated by an angle ofapproximately 90 degrees to the display surface of the cabinet 50 onlywith the frictional force based on the elasticity between the spring pin62 and the connection block 61.

[0114]FIG. 19C shows that the cover body 52 is rotated by an arbitraryangle equal to or larger than 270 degrees to the display surface of thecabinet 50, and the cabinet 50 and the cover body 52 each have free endsplaced on a plane P such as a desk. Thereby, the cabinet 50 may be keptstanding on a horizontal plane by using the cover body 52 as a stand. Inthis manner, by changing the angle of inclination of the cover body 52relative to the cabinet 50, the display surface of the cabinet 50 can befreely set to a state by a user such that the user may easily see thedisplay surface.

[0115] Moreover, as anti-slipping rubber 68 a, 68 b is fitted to each ofthe free ends of the cabinet 50 and the cover body 52, there is nopossibility that the control device 2 slides on a plane P such as adesk. Accordingly, the inclination angle of the cabinet 50 may be keptat an arbitrary angle by using the cover body 52 as a stand, even whenthe rotating shaft 67 is used as the one rotating shaft.

[0116]FIG. 20 shows one example in which the diameters of two springpins 62 and 63 are changed for different elasticities. For example, itis assumed that, of one pair of spring pins 62 and 63, the diameter ofthe first spring pin 62 is smaller, and that of the second spring pin 63is larger, and the frictional force of the second spring pin 63 islarger than that of the first spring pin 62. Also in the presentembodiment, the same as in the embodiment shown in the above FIG. 17A,17B and the like, the spring pin 62 with a smaller elasticity isconfigured to be preferentially rotated, and rotating of the spring pin63 with a larger elasticity is started after the rotating amount of thespring pin 62 becomes the maximum.

[0117] In this case, in either of the occasions in which the cover body52 is opened and closed to the display surface of the cabinet 50 thecover body 52 is rotated about the first rotating shaft with the springpin 62 with a smaller elasticity in the first place, and the body 52 isrotated about the second rotating shaft with the spring pin 63 with alarger elasticity in the second place.

[0118] That is, the connection block 61 is rotated relative to thecabinet 50 about the spring pin 62 in the first place by open/closeoperation of the cover body 52. The cover body 52 is rotated relative tothe connection block 61 about the spring pin 63 in the second place. Inthe present embodiment, of the first and the second rotating shaftswhich are disposed parallel to each other, the rotating shaft with thespring pin 62 having a smaller elasticity is preferentially rotated, androtating of the cover body 52 relative to the cabinet 50 may be smoothlyexecuted.

[0119]FIG. 21A shows one example in which a clicking plate 69, insteadof one of the above two spring pins, for example, the spring pin 63, isprovided as resisting means. In the control device 2 shown in thepresent embodiment, the angle of the cover body 52 relative to thedisplay surface of the cabinet 50 may be changed over to multiple stagesof every predetermined angle(four stages of every 90 degrees in thepresent embodiment). Here, both of the frictional force of the clickingplate 69 and that of the spring pin 63 may be configured to have thesame magnitude, or different magnitudes for each frictional force.

[0120]FIG. 21B shows an exploded and enlarged view of the clickingcircular plate 69 shown in FIG. 21A. A clicking convex circular plate isfixed to the base a of the cover body 52 with fixing means such asadhesives. Four convex sections 69 a are concyclically disposed at equalintervals in the circumferential direction on the clicking convexcircular plate b. The clicking convex circular plate c is configured tobe facing the clicking concave circular plate b.

[0121] One concave section 69 b which is disposed concyclically relativeto the four convex section 69 a and can detachably engage with eachconvex section 69 a is provided on one surface of the clicking concavecircular plate c. One surface of a ring-like corrugated plate spring dis fixed on the other surface of the clicking concave circular plate cwith fixing means such as welding or the like. The other surface of thecorrugated plate spring d is fixed on the base e of the connection block61 with fixing means such as adhesives.

[0122] Thus, the clicking circular plate 69 has a structure by which theclicking convex circular plate b, the clicking concave circular plate c,and the corrugated plate spring d are laminated. The clicking circularplate 69 is located between the base a of the cover body 52 and the basee of the connection block 61.

[0123] Thus, when the cover body 52 is rotated, a frictional force isgenerated by the elasticity of the corrugated plate spring d until anyone of four convex sections 69 a of the clicking convex circular plate bprotrudes from the concave section 69 b of the clicking concave circularplate c, and the other convex sections 69 a adjacent to each other areengaged. The cover body 52 is held at an arbitrary angle to the displaysurface of the cabinet 50 by the above frictional force.

[0124] And, the cover body 52 is locked at a predetermined angle to thedisplay surface of the cabinet 50 by engaging the convex section 69 a ofthe clicking convex circular plate b with the concave section 69 b ofthe clicking concave circular plate c. Thereafter, by extracting theconvex section 69 a from the concave section 69 b with the rotation ofthe cover body 52, there occurs a click feeling as the cover body 52 isrotated,. Thus, change in the angle of the cover body 52 is surelysensed by finger touch, using the click feeling at insertion orextraction of the convex section 69 a into or from the concave section69 b.

[0125]FIG. 22A shows one example in which the above-described twoclicking positions of the clicking plate 69 are set to two points, andthe clicking plate 69 is provided on the first rotating shaft, and thespring pin 63 is provided on the second rotating shaft. Two convexsections 69 a which are disposed concyclically at equal distances in thecircumferential direction on the clicking plate 69. Here, the structuresof the clicking concave circular plate c and the corrugated plate springd are the same as in the above described embodiments.

[0126] In this case, both of the frictional force of the clicking plate69 and that of the spring pin 63 may be configured to have the samemagnitude, or different magnitudes for each frictional force. In thepresent embodiment, one example in which the frictional force of theclicking plate 69 is configured to be larger than that of the spring pin63 has been shown.

[0127] As shown in FIG. 22B, when the cover body 52 is opened, thesecond rotating shaft with a smaller frictional force is rotated in thefirst place, and the first rotating shaft with a larger frictional forceis rotated in the second place, When a pull-up force is applied on thefree end of the cover body 52, the cover 52 is opened at an angle of alittle over 180 degrees to the display surface of the cabinet 50 withthe spring pin 63, which is the second rotating shaft, as the center ofrotation. At this time, a frictional force is generated between thespring pin 63 and the connection block 61, and the cover body 52 isrotated accompanying a frictional force by the elasticity of the springpin 63.

[0128] Subsequently, as shown in FIG. 22C, when the cover body 52 isfurther opened, the clicking plate 69 and the connection block 61 arerotated by 180 degrees with the clicking plate 69, which is the firstrotating shaft, as the center of rotation. Accordingly, the cover body52 is opened at 360 degrees to the display surface of the cabinet 50,and the cover body 52 attaches to the back of the cabinet 50.

[0129] At this time, click feeling is generated by the clicking plate atthe beginning and the end of rotation, and during rotation, the coverbody 52 is rotated accompanying a frictional force by a spring force ofthe corrugated plate spring. As described above, the cover body 52 isrotated accopanying the click feeling and the frictional force.

[0130]FIG. 23 shows another embodiment of resisting means which givesloads to the cover body 52 when the body 52 is rotated. The resistingmeans described in the present embodiment comprises a gear device 83 anda damper device 87. A control device 2 described in this presentembodiment is provided with the gear device 83 which comprises two gears84 a and 84 b as resisting means instead of one of two spring pins whichhave been described above, for example, the spring pin 62, and thedamper device 87.

[0131] The rotating shaft 85 is provided as a first shaft in the controldevice 2, and the connection block 61 is fixed in the middle portion inthe axial direction of the rotating shaft 85. One end of the rotatingshaft 85 is protruding sideways, passing through the cabinet 50, and asmall-diameter gear 84 a is fixed to the protruding section. Alarge-diameter gear 84 b is configured to engage with the small-diametergear 84 a, and a shaft section 88 which is protruding from one side isprovided in the large-diameter gear 84 b.

[0132] The shaft section 88 of the large-diameter gear 84 b is rotatablypassing through the side surface of the cabinet 50. And, the tip of theshaft section 88 is inserted into the damper device 87 which is held inthe cabinet 50. The damper device 87 gives a resisting force such as anadhesive force and a frictional force at rotating of the shaft section88, and, for example, a liquid damper which uses the liquid, and othertypes of damper devices may be used as the device 87. 86 is a gearboxwhich covers the large and small gears 84 a and 84 b.

[0133] In the present embodiment, when the cover body 52 is pulled up,and the connection block 61 is rotated, the rotation shaft 85 and thesmall-diameter gear 84 a are rotated integrally with the connectionblock 61. As the large-diameter gear 84 b engages with thesmall-diameter gear 84 a at any time, the shaft section 88 is rotated byan amount corresponding to the reduction ratio between the gears 84 aand 84 b. A resisting force is applied on the damper device 87 accordingto the rotating amount of the shaft section 88, and the connection block61 is rotated relative to the cabinet 50 accompanied by the aboveresisting force. Thereby, the cover body 52 may be configured to berotated in a smooth way with an adequately resisting force, and, at thesame time, the cover body 52 may be reliably fixed at an arbitraryposition in the middle way of the rotating.

[0134] The control device 2 with the above configuration is not limitedto use for the DVD player 1 in the above embodiments, but it is alsopreferably used for, for example, PDA (Personal Digital Assistants), asmall word processor, a small microcomputer, an electronic dictionary, aportable television set, and a small electronic clock. Moreover, it maybe also applied for desktop-type devices of the above-listed electronicdevices, and other electronic devices.

[0135] In addition, FIG. 13 shows a state in which the DVD player 1, anot-shown domestic power supply and the like are connected to each otherfor charging the battery chassis body 3 of a power-supply device. InFIG. 13, a numeral 90 represents a holding stand which keeps and holdsthe player main body 6. The holding stand 90 comprises a holding section90 a in which holding grooves are formed on the upper surface, and aholding platform 90 b which is continuous from the lower part of theholding section 90 a. A holding platform 90 b of the holding stand 90 isextendedly and widely formed such that a sufficiently large mountingsurface is secured.

[0136] Furthermore, supporting pieces 91 and 92 which supports the sidesurface of the player main body 6 are provided at both sides of theholding section 90 a in the direction of the holding grooves. A pawlsection 91 a which engages with a concave part provided on the sidesurface of the player main body 6 is provided in the tip section of onesupporting piece 91. With the provision of the pawl section 91 a, it ispossible to securely hold the DVD player 1 weight distribution of whichin the circumferential direction becomes badly balanced due toinstallation of the battery chassis body 3, without rolling even in astate in which the battery chassis body 3 is turned sideways.

[0137] Here, a numeral 93 shown in FIG. 13 represents a third connectioncable which connects a power supply such as a domestic socket and theplayer main body 6. A charging plug 94 is fitted to one end of theconnection cable 93. The charging plug 94 may be attached or detached toor from the second socket section 29 of the player main body 6. Aterminal section is configured to be moved backward as one operation bypressing a semicircle part at the center of the charging plug 94 torelease connection to the second socket section 29.

[0138] Though, as described above, the description has been made in theabove-described embodiments, assuming, for example, that an informationreproduction device is the DVD player 1, and the control device 2 is aremote control device with a liquid crystal display of the player 1, butthe present invention is not limited to the above embodiments. And theinvention may be also applied for electronic devices such as a portableCD player, and a portable disk drive device, and for their remotecontrol devices.

[0139] Moreover, one example in which the player main body 6 and thecontrol device 2 are connected to each other by wire has been describedin the above-described embodiments, but it is needless to say that radiomeans may be configured to be applied as signal transmission means,wherein the player main body 6 and the control device 2 are connected toeach other by radio for signal exchanging.

[0140] Thus, various modifications may be applied without departing fromthe true spirit and scope of the invention.

INDUSTRIAL APPLICABILITY

[0141] According to a display device of the present application, a coverbody may be configured to have friction and to be rotated in acontinuous manner, and, at the same time, as two rotating shafts whichare parallel to each other are provided in a connection section betweena cover body and a display device main body, and resisting means togenerate a frictional force at rotating is provided on at least one ofthe rotating shafts. Moreover, the cover body may be used for protectionof the display section and, at the same time, for a wall to preventothers from peeping the display section. Furthermore, the cover body maybe also used as a stand for the display device main body.

1. A display device comprising: a display device main body which has adisplay section; a connection section which is rotatably providedrelative to said display device main body about a first rotating shaftparallel to said display section; a cover body which is rotatablyprovided in said connection section about a second rotating shaftparallel to said first rotating shaft, and opens and closes said displaysection; and resisting means which is provided on at least one of saidfirst rotating shaft and said second rotating shaft of said connectionsection, and generates a frictional force at rotating of said connectionsection and/or said cover body.
 2. A display device according to claim1, wherein, said resisting means is a spring pin whose rotating shaftrotatably connecting said cover body and said connection section canelastically reduce its own diameter; and said connection section andsaid display device main body are rotatably connected through a rotatingshaft.
 3. A display device according to claim 1, wherein, said resistingmeans is a spring pin whose rotating shaft rotatably connecting saidconnection section and said display device main body can elasticallyreduce its own diameter; and said cover body and said connection sectionare rotatably connected through a rotating shaft.
 4. A display deviceaccording to claim 1, wherein said resisting means comprises: a firstspring pin whose rotating shaft rotatably connecting said cover body andsaid connection section can elastically reduce its own diameter; and asecond spring pin whose rotating shaft rotatably connecting saidconnection section and said display device main body can elasticallyreduce its own diameter.
 5. A display device according to claim 4,wherein said first spring pin and said spring pin have different elasticforces from each other.
 6. A display device according to claim 1,wherein, said resisting means has a rotating pin the rotating shaft ofwhich rotatably connects any one of said cover body and said connectionsection, or any one of said connection section and said display devicemain body, and which can elastically reduce its own diameter; saidconnection section comprises a first block and a second block whichcatch said spring pins, and a fixing screw which fixes the first blockand the second block; and frictional forces of said spring pins areadjusted by tightening the fixing screw.
 7. A display device accordingto claim 1, wherein, said resisting means comprises a spring pin therotating shaft of which rotatably connects any one of said cover bodyand said connection section, or any one of said connection section andsaid display device main body, and which can elastically reduce its owndiameter; and a clicking plate which rotatably connects the other.
 8. Adisplay device according to claim 1, wherein, said resisting meanscomprises a spring pin the rotating shaft of which rotatably connectsany one of said cover body and said connection section, or any one ofsaid connection section and said display device main body and which canelastically reduce its own diameter; and a gear device and a damperdevice which rotatably connect the other.
 9. A display device accordingto claim 1, wherein said cover body functions as shading means to shadeincidence light to said display section by rotating from a state, inwhich said display section is closed, in the opening direction about atleast any one of said first rotating shaft and said second rotatingshaft, and further functions by rotating as a stand to support saiddisplay device main body such that said display device main body is heldat a predetermined angle to a mounting surface on which said displaydevice main body is mounted; and a main plane of the cover body rests ona back opposing to the display section of said display device main bodyby further rotating.